985 search results - page 7 / 197 » On the validity of digital signatures |
PKC
1998
Springer
14 years 29 days ago
1998
Springer
A new digital multisignature scheme shall be proposed in this paper to allow some members of a group signing the same document and sending it to the receiver, who in turn shall ve...
INFORMATICALT
2007
13 years 8 months ago
2007
Recently, Chen, Chung, and Huang proposed a traceable proxy multisignature scheme based on the elliptic curve cryptosystem. However, this paper shows that the original signers can ...
TIFS
2010
13 years 7 months ago
2010
A fair contract signing protocol allows two potentially mistrusted parities to exchange their commitments (i.e., digital signatures) to an agreed contract over the Internet in a f...
ACSAC
2000
IEEE
14 years 1 months ago
2000
IEEE
Digital signature schemes are based on the assumption that the signing key is kept in secret. Ensuring that this assumption holds is one of the most crucial problems for all curre...
FC
1998
Springer
14 years 29 days ago
1998
Springer
In this paper we construct a practical group blind signature scheme. Our scheme combines the already existing notions of blind signatures and group signatures. It is an extension o...